What's not disputed is that education funding to West Australian schools has changed. But while Opposition Leader Mark McGowan calls it a funding cut, Brendon Grylls says it's actually a slowing of the increase of education funding.

"We're looking to slow the rate of growth of spending with an extra 300 million dollars this year," Mr Grylls told Cristy-Lee Macqueen on North West WA Mornings.

But Mr McGowan argues that the 300 million dollar funding increase doesn't match the growing number of school students in Western Australia leading to a decrease in funding per student, larger class sizes and fewer assistant teachers.

"So that means a school like Karratha Senior High School will lose 277 thousand dollars a year," said Mr McGowan

Mr Grylls says the changes will not affect the quality of education.

"We believe we still can offer a first rate education system."

But Mr McGowan says it will impact regional schools.

"You actually reduce the likelihood of regional kids going on to further study."

Listen to Brendon Grylls and Mark McGowan on North West WA Mornings with Cristy-Lee Macqueen.